55871544 has 32 divisors (see below), whose sum is σ = 140152320. Its totient is φ = 18560736.

The previous prime is 55871509. The next prime is 55871549. The reversal of 55871544 is 44517855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55871549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3577 + ... + 11159.

It is an arithmetic number, because the mean of its divisors is an integer number (4379760).

Almost surely, 2^55871544 is an apocalyptic number.

It is an amenable number.

55871544 is an abundant number, since it is smaller than the sum of its proper divisors (84280776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55871544 is a wasteful number, since it uses less digits than its factorization.

55871544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7899 (or 7895 counting only the distinct ones).

The product of its digits is 112000, while the sum is 39.

The square root of 55871544 is about 7474.7270184268. The cubic root of 55871544 is about 382.2934798691.

The spelling of 55871544 in words is "fifty-five million, eight hundred seventy-one thousand, five hundred forty-four".